Dioxins are unwanted by products of a wide range of manufacturing processes including smelting, chlorine bleaching of paper pulp and the manufacturing of some herbicides and pesticides.

二恶英是冶炼、纸浆氯漂白和一些除草剂和杀虫剂制造等各种生产过程的有害副产品。

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Operate and monitor screening equipment, bleaching equipment, digesters, mixing tanks, washers, and other pulp processing machinery and equipment to carry out one or more cellulose processing steps.

操作和监视筛分设备，漂白设备，沼气池，搅拌罐，垫圈及其他浆粕加工机械和设备，开展一个或多个纤维素处理步骤。

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ECF and TCF bleaching for RDH and traditional sulfate pulp of eucalyptus were studied, and a comparison with elemental chlorine-containing bleaching was made.

对桉木rdh硫酸盐浆和常规硫酸盐浆的ECF和TCF漂白进行了研究，并与有元素氯漂白进行了对比。

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